I am 15 years old and only about an hour ago i figured that i had a lump about 2 by 2 cm maybe abit smaller on the lowers part or edge of my lower left ribcage around central and i have just noticed it it is hard and will not move around my finger lately i think i may have had the tiniest bit of deprivation from breating and there feels like abit of tension. This is scaring me and i need to look if i should try and get if checked out if possibe

(Sorry i cant edit my spelling mistake at the top)

thank you